Apparatus for feeding glass



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w. J'. MILLER APPARATJS FOR FEEDING GLASS Filed Aug. 15, 1922 IN VE v/T'OP.

Nov. 29, 1927.

Nov. 29, 1927.

W. J. MILLER APPARATUS FOR FEEDING GLASS Filed Aug. 15. 1922 6 Sheets-Sheet 2 I 1/ 7 70 re;

WIT

Nov. 29, 1927.

W. J. MILLER APPARATUS FOR FEEDING GLASS Filed Aug. 15, I922 6 Sheets-Sheet 5 I S/TO mT w/Ess FQUW HT Nov. 29, 1927. 1,651,036

w. J. MILLER APPARATUS FOR FEEDING GLASS Filed Aug. 15, 1922 e Sheets-Sheet 4 Q Y K I II I ll W ZZ 88 85 5 I 5 v- 76 F 5 1 g H J! i I JH M 79 a; l f 41 I 80 W. J. MILLER APPARATUS Fon FEEDING GLASS Nov. 29, 1927.

6 Shets-Sheet 5 Filed Aug.,l5. 1922 Nov. 29, 1927.

w. J. MILLER APPARATUS FOR FEEDING GLASS Filed Aug. 15, 1922 6 Sheets-Sheet 6 I /J v WI T -/Ess Patented Nov. 29, 1927.

UNITED STATES WARE.

PATENT; orrrcs.

WILLIAM J. MILLER, OF SWISSVALE BOROUGH, PENNSYLVANIA, ASBIGIOB 1'0 m!- FORD-EMPIBE COMPANY, OF HARTFORD. CONNECTICUT, A CORPORATION OF DELA- APPARA'IUS IOR FEEDING GLASS.

Application filed-August 15, 1922. SeriatNo. 581,927.

My invention consists in. a new and improved process and apparatus for feedln molten glass to fabricating mechanlsm, an

the same may applied to either stream feedduced either by pressing or blowing or both will be imperfect and cordy, and in the case i of hollow ware, such as bottles, the walls will be of uneven thickness. Again, unless the successive mold chargesare uniform as to temperature and viscosity, the oharacterand quality of the ware will vary, and the loss in the finer'grades of goods becomes consider: able.

In the automatic feeding of glass, the charges are usually formed from glass which is transferredv from the main tank into-a boot or relatively shallow receptacle, usually an extension of the tank itself, and the lack of homogeneity in a mold charge, and the lack ofuniformity in a 'succcession of mold charges, are as a rule due to the existence in the feeding receptacles of zones or strata of glass of different temperatures. Thus where the-glass flows from the tank into the feeding receptacle, zones or strata of colder glass tend to form next to the floor and side walls of the receptacle, leaving. a zone or stratum of hotter glass along the top center. Where, as is the custom, the discharge orifice is in the nose or front end of the receptacle,theglass at the front and sides of the orifice is 1i to be colder than that at the rear of the orifice or next to the tank from which the hot glass is being supplied. Thus the stream or portion of glass discharged through the-orifice is usually composed partially of colder and partially of hotter glass, and, consequently, responds irregular y to the fabricating operations. Furthermore the proportion of the colder glass to the hotter glass in a succession of mold charges will vary, sothat the fabricated product will vary in quality.

One of the objects which I have in view is the mixing or stirring of the glass in the feeding receptacle so that the glass discharged therefrom will be perfectly homogeneous in temperature and quality, so that,

not' only will each mold charge be homoely geneous throughout, but homogeneit in a succession of mold charges will e obtained. f

Forthis purpose I impart such movement to thefeeding receptacle to which the glass is delivered from thetank that the differentstrata or -laminae are' so intermingled at the discharge orifice so that the glass discharged from said orifice maintains the desiredhomo- I gen'eity.

Thus 'as a convenient embodiment I may provide a rotating feeding receptacle to which the glass is supplied from the tank,

means being provided whereby the rotation of the receptacle causes a thorou h stirring or mixing of the glass.- Where t e mold charges are formed as suspended gobs which are sheared off below the orifice, I may use I a plunger or valve member reciprocating in the receptacle in relation to the orifice, and said member may itself be rotated in a direction opposite to the direction of the receptacles rotation or the member may be nonrotating, and thusact as a stationary paddle or stirrer in a revolving bowl.

Where, asin case of a stream feeder, no reciprocating plunger, or its equivalent, is

.used to control the discharge of glass through the discharge orifice, but a valve member is feeder is not in operation, said valve member 1 may depend into the glass while the feeder is in operation, and may be either stationary or may be given a movement 0p posed to the movement of the receptacle.

'used to close the discharge orifice when the Where fabricating machines are characterized .by an intermittent or ste by! step movement of the molds which are t us alte in turn in. the feeding position, a fixed feed or discharge orifice is practical, but a stream feed or a suspended gob feed has not been successfully applied to fabricatin machines having continuously moving mol supports except by the or slides whic orificeto move during the feeding o oration in unison with the mold to whi h t e mold charge is to be supplied.

pl-ovision of swinging troughs are "unsatisfactory. I have i solved this problem by causing the discharge As a practical and convenient apparatus Y for the accomplishment of these and other purposes which will hereafter appear, I provide new and improved feeding apparatus characterized by the provision of a rotating ifeeding' receptacle which also swings or moves during the feeding operation in um:

son with the molds. I

Other novel and highly useful features of construction and arrangement ofparts will appear from the following description. In the accompanying drawings, which are.

however merely intended to illustrate a pr'acmethod of timed control fluid pressure cylinders;

tical embodiment of the principles of my invention without limiting the scope of the latter to the-construction shown, Fig.'1 is a. view partially in vertical section showing the principles ofmy invention embodied in a feeder provided with a rotating and oscillating feeding receptacle-and operatingb'in connection with a rotary mold table fa ricating machine,rthe latter being indicated only in a general way; Fig. 2 is a lan view ofthe same, certain of the parts being omitted and others broken-away for the sake of clearness; Fig. 3 is a detail in section of one of the fluid pressure cylinder mechanisms; Fig. 4 is a detail of the support for one of said grammatic vie'w showm a convenient I or the different operative elements; Fig. 6 is a view similar to Fig. 1 showing a modification; Fig. 7 is a view similar to Fig. 2 of said modification,

and Fig. 8 is'a view similar to Figs. land 6 but showing other modifications.

the rinciples of my invention as the same are lllustrated in the drawings, reference be- The following is 'a' detailed description of ing first had to Figs. 1, 2, 3 and 4. I

A represents the tank or other source of 5 supply of molten glass. B represents a boot or container, preferably in the form of a shallow extension of the tank. The glass is supplied to the boot B from the tank'in any convenient manner, either. automatically or otherwise, as by the constant level port or passage 1 which is shown guarded by the scum ring'2.- Numerous other methods for supplying molten glass from a tank to feed- I ing apparatus are well known in the. art, such asv siphonic means, and it will be understood that any one of the same may besubstituted for the conventional constant level opening shown in Fig. 1. a

In the embodiment of my invention illustrated in the drawings, the molten glass issupplied first from the tank 'A to the boot- B, and thence from the boot B to the feed ing receptacle G later to be described, but

I it will be understood that the glass may be supplied directl from the tank A to a feeding receptac e, if desired.-

f The glass in boot B is maintained at the proper working temperature,'. as by the gas- Fig. 5 is a dia burners or wind pipes 3 extending through ports in the walls or roof of the boot. 4

represents apce'p hole boot.

The boot B is provided with a suitable outlet or orifice-or passagethrough which the glass'is supplied in any convenient man in the front of the her to the feedingli'eceptacle C. Thus, as

a convenient arrangement, I have shown the orifice 5 in the-floor of the boot B, the upper portion of said jorifice being formed by the tapered bore of a removable bushing 6 while the lower portion'of said orifice is formed by the tapered bore, of'the interchangeable in an'opening in the roof of the not, said valve, in the case of stream feeding. being lowered to cut off the flow through the orifice 5 when it is desired to cut off the supply of glass to the receptacle C, and being raised to open the orifice 5 when itis desired to resumet-he supply. p However, especially where the molten glass is fed from the receptacle C in the formof se arated masses, such, for instance,

as suspen ed gobs, I prefer to supply the glass to the receptacle C intermittently or in such a manner that the diminution of the supply of lass in the receptacle incident to the formation of the gobs, will be compensated for.

For this purpose I provide'a reciprocating member working'in relation to the orifice either in axialalinement thereto -or in a plane transverse to the axis of the orifice.

Thus-I show the valve D as a reciprocat-h ingplunger working in axial alinement with the orifice. and withits movements timed with the discharge of gobs from the receptacleC.

Thus'I have shown the upper end of the valve D pinned to a clevis 10 secured to the lower end of the pi'stonrod 11 of the piston 12 which works in the fluid pressure cylinder E {supported in' any convenient manner abdve the boot B. Fluid pressure is admitted to and relieved from the opposite ends of cylinder E in" any convenient manner. InFi'g. 3 I show in detail the oreferred construction of the cylinder E. Thus the upper end of the cylinder is provided with a.- threaded hole through ','which is screwed the threaded shaft 13 which acts as an adjustable stop to limit the upward' movelab mentof the piston .12, and, consequently, the ascent of the valve-D relative to the orifice 5. The head or lower end of the cylinder is provided with a threaded axial opening 14 in which is adjustably screwed the sleeve 15, the inner end of the sleeve limiting the downward movement of the piston 12 and, consequently, the descent of the valve D relative to the orifice 5. 16 is a packing gland in the sleeve through which the piston rod 11 extends. 4

To prevent the formation of zones or strata of different temperatures and viscosities in the glass contained in the boot B, which would result in a lack of uniformity in the glass supplied to the feeding recep- -tacle C, I prefer to rovide means for stirring or mixing the g ass in the boot B.

Separate means may be provided for this purpose, but I, prefer to accomplish this function by means of the valve D to which I impart a rotary emotion which may occur while the valve is free from vertical movesure to the cylinder F will cause the rack" chine.

ment, or simultaneously with such movement. g

Thus I show a pinion 17 fixed on the stem 11 and meshingwith a rack 18 mounted on the piston rod 19 of the horizontally disposed fluid pressure cylinder F which may be mounted on top of the tank A. It is evident that the proper admission of fluid pres- 18 to reciprocate, thus rotating the valve D and thoroughly intermingling the glass in the boot B, forming a body of glass of uni.- form temperature and viscosity. -The engaging surfaces of the pinion 17 and the rack 18 are sufficiently extended to allow for the vertical movement of the pinion with the stem 11 withoutimpairing the meshing of the two elements.

In the case of stream feeding from the .boot B to the receptacle C, when the feeder is in operation, the valve D may be raised to open the orifice 5 but may still be partially immersed in the molten glass and be rotated to act as a mixing tool.

C,'already incidentally refered to, is the feeding receptacle from which-the glass is fed, either in the form of a stream, or as separate gobs or masses, to the fabricating ma- Such machine is indicated .by the reference letter G and is shown as characterized by a mold support or table H rotating on the machine standard I as an axis. In

the drawings the motion of the table II is J repreassumed to be counterclockwise. sents a plurality of molds or containers mounted upon the table H and brought in turn into the feedingzone or position y the rotation of the table H.

To maintain the supply of moltenglass in the receptacle (Lat uniform temperature and viscosity, I prefer to provide means for mix ing or stirring the glass in the receptacle,

vreceptac e G. Ball bearings 27 may be inthus constituting said receptacle what might be termed a mixing bowl.

To adaptmy invention for more con enient use in connection with a fabricating inachine Whose molds move continuous y as compared to a step by step or intermittent motion, I provide means whereby the discharge orifice of the feeding receptacle moves with the molds through the feeding zone.

It will of course be understood that, if

desired, the mixing or stirring function may be omitted, but the homogeneity and umformity of the gobs, thus obtained, is a very decided advantage. On the other hand the feeding receptacle need not move with the molds, as for instance in the use of my invention with fabricating machines characterized by an intermittent, or step by step, movement of the molds,the latter being Sta-- tionary during the feeding operation.

In the embodiment ofmy invention illus trated in the drawings I show the receptacle I equipped both for mixing the glass contained therein, and for movement withthe molds during the feeding operation. 7

Thus I have shown the receptacle 0 in the form of a relatively shallow bowl of refractory material and mounted in a metal pan K. The bowl 0 is provided with an axial opening in its bottom which registers with a similar opening in the pan K, the wall of the opening in pan K being prolonged downwardly to form the annular collar 20. 21 is a tapered bushing inserted up into the registering openings in the'bowl and pan, and 22 is an interchangeable mouth-rin whose bore together with that of the bus ing 21 forms the discharge orifice of the feeding receptacle. The bushing and mouth-ring are'of refractory material and may be removably held in place, as by the metal ring 23 bolted to the lower end ofthe collar 20.

The pan K, in which the receptacle C is supported, is rotatably mounted in an an nular support or frame 24 which may be integral withor mounted on an elongated sleeve M. The sleeve M is rotatably mounted on the standard I of the machin'e, being shown supported from below by'the collar 25 which is fixed on the standard as by the set screw 26. The collar is adjustable on the standard, so that any desired elevation ma be given to the sleeve M and the terposed between the sleeve and the collar.

The pan K is provided with a. perimetral flange 28 by means of which it is mounted i th support 24, ball bearings 29 beingm interposed between the [under surface of said flange and said support. 30 represeiTts an annular series of co teeth disposed about the outer face of the ange 28, and mashed with the pinion '31. The pinion 31 is fixed on the upper end ofa vertically disposed shaft 32 journaled in an upper bearing in the support 24 and a. lower, step bearing 33 in the shelf 34 integral with or mounted on the sleeve M.

35 is a bevelled pinion-mounted on the shaft 32 and meshing with a smaller bevelled pinion 36 mounted 'on the shaftof a motor N which is mounted on the shelf 34. It is thus evident that the receptacle may be rotated on its axis. This rotary movement may be in either direction. 1 The receptacle C is also shown mounted to swing on the column I as an axis.

Thus 37 is a vertically disposed shaft journaled in bearings 38 extending from a.

plate 39 secured to the frontof the tank or some other fixed support. The lowerend fofsaid shaft has fixed thereto the radial arm 40 adapted to be engaged by a vertically disposed lip 41 on the parison plunger cylinders J, one of which is vertically alined below each of the molds J, so" as "to rock the shaft 37 clockwise in Fig. 2. The upper end of said shaft 37 isprovided with a second radial arm 42 in the same vertical plane as arm 40, and whose bifurcated outer end straddles the depending axial collar 20 of the pan K. It is evident that when the shaft is rocked the pan K and receptacle (1' will be swung counterclockwise in Fig. '2, moving in unison with the mold until the striking arm is disengaged from the rib 41. It is during this movement of the re-v ceptacle C that the mold charge is deposited or dropped into the mold J which is movmg in unison with the receptaclev 0.. To

" return the receptacle C toits position of rest, I provide a helical spring 43 whose one end is secured to the arm 42 and whose other end is attached to the end of an adjustment bolt 44 screwed through a threaded collar 45 on a bracket extending angularly from the plate 39. Thus when .the lip 41 is disengaged from the arm 40, by the con-'- tinued movement of the mold table, the spring 43 automatically returns the receptacle G clockwise to its starting position.

"To prevent jarring, the return of the receptacle is CHShlOIEd. Thus the bolt 46 is screwed through a threaded hole in a short arm 47 carried by the shaft 37, and the end of said bolt is provided with a piston'48 -which works ima dash p0t49 formed ina choked air-port 50 to tegral with the plate 39 and provided with permit of a retarded relief of pressure. a i

As already stated thefed' of molten glass to the molds from the'receptacle'C may be in the form of a continuous stream severed at proper intervals to roduce the desired mold charges, or the eed maybe in the form of se arated masses, such,'for instance, as suspen ed gobs.

In either method of feeding, mechanicalshears should be provided, by means of orifice, but any of themany suitable shear mechanisms known 1n the art may be used,

as will be evident to those skilled in glass machinery. The. shear cylinder 0 may be mounted on the shelf 34 carried by the sleeve M. i

r I prefer to use in connection with my invention a feed of the suspended gob type, and I therefore provide the vertical disposed valve or plunger P working in the receptacle C in relation to the feeding orifice. Where stream feeding, instead of gob feeding is to be used, the .lement'P may be lowered to close the orifice when the feeder is not in use, and may he raised to open the orifice when the feeder is to be put in operation. Y

Where gob feedin ,isu'sed, the element P is reciprocated-relatlve tothe orifice in the manner characteristic of gob feeders of the plunger type. Thus I'attach-the'upper end of the member P to the, clevis 51 on the lower 'end of'the stem 52 which forms the piston rod of the fluid. pressure cylinder Q.

The'cylinder mechanism is similanin constructionto the cylinder mechanism E to outer end of a support 53 extending radially from the rotary, sleeve M, and adjustable vertically and circumferentially on said sleeve. The outer end .of said support is longitudinally slotted as shown at 54 in Fig. 4 to provide clearance for the'gland and piston rod ofthe cylinder mechanism, and four bolt'holes 55 which are provided for the bolts 56 which clamp the cylinder Q on the support, said bolt holes being slotted to permit adjustment of the position of the cylinder along said support. Thus the position of said cylinder relative'to' the sleeve M may be adjusted radially, circumferentially andlongitudinally of said sleeve.

If desired I may use the member P as a mixing tool, either in combination with the rotating receptacle, or while said receptacle is stationary. Thus I may fix on the .stem 52a gear 5.7 meshing with the rack 58 on the end of the piston rod 59 of a horizontally disposed fluid pressure cylinder mechanism R mounted on a shelf 60 carried by the sleeve M. The receptacle C is provided with a heat conserving lid 61 supported from the sleeve and provided with an opening 62 for the member P, and also with one or more teams;

perature. The lid 61 is cut away to permit the glass tube dischargpd from'the orifice 5 of the boot B into t e receptacle C, the portion of said receptacle which receives the glass being preferably eccentric of its axis.

In Fig. 5, I show, diagrammatically, means for the timed 0 eration of the various actuating elements w ich are illustrated in the drawings as the fluid pressure cylindermechanisms E, F, O, Q and R, such timing being adjustable; i 7 7 Thus I show a vertically arranged battery or four-way valves F, E, Q, R and O,

a mounted on a suitable support, not shown,

and connected up by the pipes and 66 to the opposite ends of the cy inders F, E, Q, R and 0, respectively. Said valves are connected to the fluid pressure supply pipe 67. Each of said valves is thrown to connect one end of its associated cylinder to pressure and relieve pressure from the other end of the same by means of the double pawl operating levers 68 whose opposed pawl 69 and 7 O are engaged by the rollers71 of the ring members 72 of the rotary timer'S driven by the motor T. I

The particular structures of the valves and of the timer operating the same form no part of the present application but are the subject matter of a patent application to be filed by me in the United States Patent Oflice. I 7

' However the members 72 are rotarily adjustable relative to the timer so that the on the shaft of themotor N.

operation of an of the operative elements may beadjuste relative to the others.

It is evident from the foregoing that the glass may be fed in the form of predetermined mold charges from the receptacle C to the molds J as the latter reach or move through the feeding position or zone.

It is further evident that the glass dis.- charged from the boot B is deposited alo the outer edge of the receptacle C, an moves gradually in la more or less spiral course to the discharge orifice of the recap; tacle. The rotation of the receptacle ten to mix the strata of glass together, and such mixture is rendered more effective, and a greateruniformity and homogeneity is ob tained at the orifice, by the use of the valve or plunger P which may be recipr0cated,as

in suspended gob feeding, or may be. stationary, as in stream feeding, thus in either case acting as a stationary paddle in a revolving mixing bowl. Where howevervthe valve or reciprocal plunger is itself rotated, preferably in a direction the reverse to that of the receptacle, the mixture is complete and" absolute uniformity and homogeneity are assured. v v

In Figs, 6- and 7 I show a modification wherein the feeding receptacle is mounted to swing on an axis parallel to the axis of the mounted' on a shelf 83 inte mold sup ort, instead of coincident therewith as a ready described- Thus the annular support 73 in which the pan .K and the feeding receptacle C are rotatably mounted is rqvided below and eccentrically with 'aco ar 74 which is fixed on the upper end of a vertically disposed shaft 75 which is journalled in an upper' sleeve bearing 76 and a lower step bearing 77 both extending from a plate 78 fixed to the front of the furnace. A. The shaft is adjustable vertically byemeans of a pillow block 79 in the step aring 77 which is moved in'the same by means of a screw bolt 80 extending up through the bottom of sald step bearing, ball bearings 81 being interalso posed between the block 79 and the lower.

end of the shaft 75. The shaft 75 is provided with a radially extending angular arm 82 which is engaged by the ribs 41 of the cylinders-J to swing the receptacle C.

While it is true that the molds and the receptacleturn on different axes, in raotice there is no difliculty in depositing t e gobs 01' char es inthe molds.

In t is modification the motor N is al with or carried by the support 73, t e pan K bein driven by means of a gear 84.- meshing wit the teeth 30 of said pan, and mounted on the upper end of a shaft .85 journalled in the frame work of the support 73, and having its lower end provided with a. bevelled gear 86 meshing with .a smaller bevelled gear 87 by the standard U. The sleeve 88 also carr1es the shelf 90 upon which the shear cylinder O is mounte The receptacle is automatically returned to its position of rest, after a feeding'operation. Thus I show .the radial arm 91,

fixed on the shaft 75, connected by the ada justable helical spring 92 to a fixed point such as the front of the furnace A or the late 78. A pneumatic cushion device is provided to prevent jars.

In Fig. 8 a number of modifications are suggested. Thus I show therein the discharge orifice 5 of the boot B in the front, instead of the floor, of the boot, and the travel of the glass throu gh the same regulated by the vertically sliding gate V, which may be held elevated when the feeder isin operation to permit a continuous flow of glass, and then be depressed to close the orifice when the feeder is not in operation.

ion the receptacle C and the shelf 89 upon which the cylinder R is mounted are carried ing into the supply of glass in the bowl C eccentricallyof the axis of rotation of the latter. Said tool Y may be suspended from the support 53, and may, if desired, be retated, referably in the direction the reverse oi that of the bowl 0, as by means of a fiuidmpressure cylinder Z carried by. the

sleeve Although for the sake of clearness in illustration of the principles of my invention I have described in detail the structures shown in the drawin s, I do not wish; to limit 'myself thereby, but claim broadly 1. In means for feeding glass to a .mold or other receiver arranged to travel about an axis, the combination of a receptacle adapted to contain a supply of molten glass and provided with a discharge orifice through which the glass travels to -form mold charges, and means for moving said receptacle about the same axes to cause the orifice to travel with the mold and verti- ,cally alined therewith during the feeding operation.

2. In means for feeding glass to a mold ..or other receiver arrangedto travel about an axis, the combination of a receptacle adapted to contain a supply of glass and provided with a discharge orifice, means for discharging glass through said orifice to form mold charges, and means for moving the receptacle-about the same axis to cause the orifice to travel with the mold and vertically alined therewith during the feeding operation.

3. In means for feeding glass to a mold or other. receiver arran ed to travel about an axis, the combination of a receptacle adapted to contain a'supply of molten glass and provided with a discharge orifice, means for discharging portions of said glass through. tl1e orifice in the form of separate .mold charges, and means for moving said receptacle about the same axis to cause the orifice to travel with the mold and verticallyalined therewith during the feeding operation.

5. In means for feeding glass to a mold or other receiver arranged to. travel about an axis, the combination of a receptacle adapted to contain a. supply of molten glass and provided with a discharge .orifice, means working in the glass relativeto said orific for discharging portions of glass therefrom to form mold char es, and means for-moving said receptacle a out the same axis to cause the orifice to travel with the mold and vertically alined therewith during the feeding operation.

6. In means for feeding glass to a mold or other receiver arranged to. travel about an axis, the combination of a receptacle adapted to contain a supply "of molten glass and provided with a discharge orifice, reciprocal means working in the glass relative to said orifice for discharging separate mold charges, and means for moving said receptacle about the same axis to cause the orifice to travel with the mold and'vertically alined I therewith during the feeding operation.

7. In means for feeding glass to a mold or other receiver, arranged to travel about an axis, the combination of a receptacle adapted to contain a supply of glass and provided with a discharge orifice through which a portion of theglass travels to form mold charges, means for severing the glass protruding through said orifice, and means for moving said receptacle about the same axisor other receiver arran ed to travel about an.

axis, the combination 0 a movable receptacle adapted to contain a supply of glass and pro vided with a discharge orifice through which a portion of the glass travels to' form mold charges, nieans moving with the receptacle for severing the glass protruding through said orifice, and means'for moving said receptacle about the same 'axisto cause the orifice to travel with the mold and vertically alined therewith during the feeding operation. i p

9. In means forfeeding glass to a 11min or other receiver arranged to travel about an axis, the combination of'a movable recep tacle adapted to contain a supply of molte1 glass and provided with a discharge orifice through w ich a portion of the glass travels to form mold charges, means working relative to said orifice to control the discharge of glass therethrough, means for severing the glass, protrudin through said orifice to detach the mold c arges, and means for mov-.

ing said receptacle about the same axis to cause the orifice to travel with the mold and vertically alined therewith during the feedmg operation.

- or other receiver arrange 10. In means for feedin glass to a mold glass and rovided with a discharge orifice through w ich a portion (if the glass travels to form mold charges, means working relative to said orifice to control the discharge of glass therethrough, means movingwith said receptacle for severing the glassprotruding through said orifice to detach the mold charges, and means for moving said receptacle about the same axis to cause the orifice to travel with the mold andvertically alined therewith during the feeding operation.

11. In means for feedin glass'to a mold to travel about an axis, the combination of a movable receptable adapted to contain a supply of p molten glass and provided with a discharge orifice through which a portion of the glass travels, to form mold charges, reciprocal means working in the molten glass relative to said orifice to control the discharge of glass therethrough, means for severing the glass protruding through said orificeto detach the mold charges, and means for moving the receptacle about the same axis to cause i the orifice to travel with the moldand veraxis, the combination of a movable receptacle adapted to contain a 'su ply of molten glass and provided with a disc arge orifice'through which 'a portion of the glass travels to form mold charges, reciprocal means working 'in 'the molten glass relative to said orifice to control the discharge ofi-glass therethrough,

means moving with the receptacle for sever ing the glass protruding through said orifice to detachithe mold char es, andmeans' 1 for moving the receptacle a cut the same axis to cause the orifice to travel with the mold and vertically alined therewith dur ing the feeding operation. 13'. In means for feeding glass to'a mold or other receiver arranged totravel about an axis, in combination with a tank for molten glass, a receptacle in which. a supply of molten glass is maintained from said tank, said receptacle being provided witha discharge orifice through which a portion of the glass travels to form mold charges, means for severing the glass protruding through said orifice to detach the mold charges, and means for moving said receptacle about the same axis to cause the orifice to travel with the mold and vertically alined therewith during the feeding operation. 7

.14. In means for feeding glass to'a mold or other receiver arranged to travel about an" axis, in combination with a tank for for feeding glass to a' moldmolten glass, a movable receptacle, said re ceptacle'being provided with a discharge orifice through which a portion of the glass travels to form mold charges, means for supplying glass in measured quantities from the tank to the receptacle, means for severing the glass protruding-through said orifice to detach the mold charges, and means formoving the receptacle about "the same axis to cause the orifice to travel with themold and vertically alinedtherewith during -the feed ing'operation.

' 15. In means or other receiver arranged to travel about an axis, in combination with a-- tank for molten glass, a movable receptacle, s'aid recle-being provided with a discharge orifice through which a portion of the glass travels to form mold charges, means for suplying glass in measured quantities from cepta the tank to the receptacle, means moving with said receptacle for severing the glass protruding through said orifice to detach the mold charges, and means for moving the receptacle about the same axis to cause the orifice to travel with the mold and verticalfor feeding glass to a mold ly alined therewith during the feeding oper- I ation. a

r 16. Inmeans for feeding" glass to a mold orother receiver arranged to travel about an axis, incombination with a tank for molten glass, 'a shallow extension of said tank receiving glass therefrom and provided with adischa'rge orifice, a movable receptacle in which asupply of glass is maintained from said extension, said receptacle being provided with a discharge orifice through which a portion of the glass travels to form mold charges, means for severing the glass protruding through'the orifice of said receptacle to detach the mold charges, and means for moving said rece tacle about the-same azcis to cause the ori ce to travel with the mold and vertically alined therewith during the feeding operation.

.17. In means for feeding glass to a mold or other receiver arranged to travel about anaxis, in combination with a tank for molten glass, a shallow extension of said tank receiving glass therefrom and provided.

with a discharge orifice, means for controlling the travel of glass through said discharge orifice, a movable receptacle in which a supply of glass is maintained from said shallow extension, said receptacle being provided with a discharge orifice through which a portion of the glass travels to form mold charges, means for severingthe lass protruding through the orifice of said receptacle to detach the mold charges, and means for moving the receptacle about the same axis to cause the orifice to travel with the mold and vertically alined therewith during the feeding operation.

or other receiver arranged to travel about an axis, in combination with a tank for molten ceiving glass therefrom and provided with a dischargeorifice, a movable receptacle in glass, a shallow extension of said tank rewhich a supply of glass is maintained from said -shallow extension, said receptacle being -provided with a discharge orifice through v or other receiver arranged to travel about an axis, 1n combination with a tank for molten glass,,a shallow extension of said tank re ceiving glass therefrom and provided with a disc arge orifice, a movable receptacle in which a supply of glass is maintained from said shallow extens1on, said receptacle being provided with a discharge orifice through which a portion of the glass travels to form mold charges, reciprocal means working in relation to the discharge orifice of said receptacle to control the passage of glass therethrough, means for severing the glass protruding throu h the discharge orifice of said etach the mold charges, and

receptacle to means for moving the receptacle about the same axis to'cause the orifice to travel with the mold and vertically alined therewith durin the feeding operation.

20.- n means for feeding glass to molds or, other containers, the combination of a recep tacleadapted to contain a supply of molten glass and provided with an orifice for the discharge of glass to the molds, areci meal member working in the glassin relation to,

said orifice to control the travel of glass therethrough, means for imparting a rotary:

movement to said receptacle, and. means for imparting an opposed rotary; movement to said reciprocal member, ;'f01 the-.purpose'described.

. 21, In means for feeding glass to molds or other containers, the combination -of .a receptacle adapted 'to contain a-s'upply of molten glass and provided with a discharge orifice, means for moving said receptacle, and a tool insertedin the glass in said receptacle and resisting the movement ofthe glass .im arted'by the movement of the receptacle w ereby'; the glass is 3 intermingledv to produce homogeneity, the position of said tool being eccentric. to the axls of movement of said receptacle.

22. In means for feedin less to molds or other containers, the com mation of a receptacle adapted to contain a supply of glass and provided with a discharge orifice, means;

for rotating said receptacle, and a tool inserted in the glass and resisting the movement thereof imparted by the movement of the receptacle whereby the glass is intermingled to produce homogeneity, the .position of said tool being eccentric to the axis of movement of said receptacle.

23. In means for feeding glass to molds or other containers, the combination of a receptacle adapted tocontain a supply of molten glass and provided with a discharge orifice,

a tool inserted in the glass in said receptacle, and means whereby opposed movements are imparted to said tool and said receptacle whereby theglassis intermingled to produce homogeneity, the'position of said tool being eccentric to the axisof movement of said receptacle. s v a 24. In means for feeding glass to molds or other containers, the combination of a receptacle adapted to contain a supply of molten glass and provided with a discharge orifice, a tool inserted in the glass in said receptacle, and means for rotating said receptacle and said tool in opposite dlrections wherebythe glass is intermingled to produce homogeneity.

' 25. In means for feeding glass to .molds or other containers, the combination of a tank for molten glass, a shallow extension thereof to which glass is su plied from said tank, said tank being provlded with a discharge orifice, means for mixing the glass in said extension, a feeding receptacle receiving glass from said shallow extension K and provided with a discharge orifice, and

means for mixing the glass in said feeding receptacle 5 I 26. In means for feeding glass to molds or other containers, the combination of a tank for molten glass, a shallow extension thereof'to which glass is supplied from said tank, said tank being provided with a discharge orifice, means for mixing the glass in said extension, a feeding receptacle receivmg provided with a. discharge orifice, and means for controlling the discharge of glass from said last named orifice. A

27 In means for feeding glass to molds or other containers, the combination of a tank for molten lass, a shallowe'xtension thereof to which g ass is sup lied from said tank, saiditank' being provided with Ca discharge orifice, means for mixing the glass in sald lass from said shallow extension and extension, a feeding receptacle receiving glass fromsaid shallow, extension and provided .with a, discharge orifice, means for controlling the dischar e ofglass from said last named orifice, an means" for mixing the glass insaid'receptaclee a 28. In means vfor feeding glass to 'molds or other containers, the combination of a tank from said extension and provided with a.

discharge orifice, means for controlling the travel of the glass through said last named discharge orifice, and means for mixing the glass in said receptacle.

29. In apparatus for feeding molten glass to molds or other containers, the combination of a receptacle adapted to contain a supply of molten glass and provided with a submerged discharge orifice, means for rotating said receptacle, and a rigid implement extending into the glass in said receptacle to control the discharge of glass from the outlet and rotating in a direction opposed to the direct-ion of rotation of the receptacle.

30. In apparatus to molds or other containers, the combination of a receptacle adapted-to contain a supply of molten glass and provided with a submerged discharge orifice, means for rotating said receptacle, a rigid implement extending into the glass in said'receptacle to control the discharge of glass from the outlet and rotating in a direction opposed to the direction of rotation of the receptacle, and means for reciprocating said implement toward and away from the outlet;

31. In apparatus for feeding molten glass to molds or other containers the combination of a receptacle for the molten glass having a submerged discharge orifice, means for rotating plying molten glass to said receptacle, and a rigid implement extending into the molten glass in the receptacle in alinement with the orifice to controlthe discharge of glass therefrom and rotating in the direction opposite to that of the rotation of the receptacle. I

32. In apparatus for feeding molten glass to molds or other containers, the combination of a receptacle for the molten glass having a submerged discharge orifice, means for rotating said receptacle with the axis of rotation coincident with said discharge orifice, means for supplying molten glass to said receptacle at a point eccentric to its axis of rotation, and a rigid implement extending into the molten glass in the receptacle in alinement with the orifice to control the discharge of glass therefrom and rotating in the direction opposite to that of the rotation of the receptacle.

33. In apparatus for feeding molten glass to molds or other containers, the combination of a receptacle for the molten glass having a submerged discharge orifice, means for for feeding molten glass said receptacle, means for sup-- rotating said receptacle, means for supplying molten glass to said receptacle, a rigl implement extending into the molten glass in the receptacle in alinement with the orifice to control the discharge of glass therefrom and rotating in the direction opposite to that of the rotation of the receptac e, and

means for moving the implement toward and away from the orifice.

34. In apparatus for feeding molten glass to molds'or other containers, the combination of a receptacle for the molten glass having a submerged discharge orifice, means for rotating sa d receptacle with its axis of rotation comcident with said discharge 'orifice, means for supplying molten glass to saidreceptacle at a point eccentric to its axis of rotation, a rigid implement extending into the molten glass in the receptacle in alinement with the orifice to control the discharge of glass therefrom and rotating in the direction opposite to that of the rotation of the receptacle, and means for moving the implement toward and away from the orifice. v

35. In apparatus for producing a succession of mold charges, of molten glass, the combination with a receptacle for the molten glass having a submerged discharge orifice, means for rotating said receptacle, a rigid implement extending into the molten glass in alinement with the orifice to control the discharge of glass therefrom, means for moving the said implement toward and away from the orifice, and a second ri id implement extendin into the glass in t e receptacle tocoact with the rotary movement of the receptacle to mix the glass in the latter.

36. In apparatus forproducing a succession of mold charges of molten glass, the

combination with a receptacle for the molten glass having a submer ed dischar e orifice, means for rotating said receptac e, a rigid implement extending into the molten glass in alinement with the orifice to control the discharge of glass therefrom, means for moving the said implement toward and away from the orifice, a second rigidimplement extending into the glass in said receptacle, and means for rotating the second mentioned implement.

Ill

37. In apparatus for roducing a succes site to that of the rotation of the receptacle. j 38. In' apparatus for producing mold harges of molten glass,the combination of a receptacle for the molten glass provided with a submer ed discharge orifice, means for rotating said receptacle on an axis inclined to. the vertical, and a rigid implement working in the glass in the receptacle and in alinement with the orifice to control the discharge of glass from the orifice.

39. In apparatus for producing mold charges of molten glass, the combination of a receptacle for the molten glass provided with a submerged discharge orifice, means for rotating said receptacle on an axis inclined to the vertical, a rigid implement working in the glass in the receptacle and in alinement with the orifice to control the discharge of glass from the orifice, and means for rotating said implement on its longitudinal axis. A

40. In apparatus for producing mold charges of molten glass, the combination of a receptacle for the molten glass provided with a submerged discharge orifice, means for rotating said receptacle on an axis in- .clined to the vertical, a rigid implement working'in the glass in the receptacle and in alinement with the orifice to control the discharge of glass from the orifice, and means for rotating said implement on its longitudinal axis and in the direction the reverse of {he direction of the rotation of the receptac e.

Signed at Pittsburgh, Pa., this 3rd day of August, 1922.

WILLIAM J. MILLER. 

